Civil Service Exam Reviewer · Word Problems · medium
A piggy bank has 40 coins consisting of ₱5 and ₱10 coins, worth ₱270 in all. How many ₱10 coins are there?
- 26
- 27
- 14
- 18
Answer
C. 14
Solution
Let x = ₱10 coins: 10x + 5(40 − x) = 270 → 5x = 70 → x = 14.
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